A handy table of properties and uses for Neoprene, EPDM, Buna-N, Silicone, SBR, Butyl, Natural Rubber, Gum Rubber, Hypalon, Urethane, Viton, Fluoroelastomer, Fluoro silicone, Hydrogenated Nitrile, Carboxylated Nitrile - John Lam